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50.0 MB (3.1 MB compressed)
5128 x 3408 pixels
43.4 x 29.0 cm ⏐ 17.1 x 11.4 in (300dpi)
MARK WILLIAMSON / SCIENCE PHOTO LIBRARY MARK WILLIAMSON / SCIENCE PHOTO LIBRARY
River Thames flood barrier, about 3km east of the Isle of Dogs, London, which comprises ten steel gates that can be raised to protect London against tidal surges in the North Sea.
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